Which term describes an organisms genetic material

An air bubble of volume 20 cm³ is at the bottom of a lake 40 m deep, where the temperature is 4.0°c. the bubble rises to the surface, which is at a temperature of 20°c. take the temperature of the bubble’s air to be the same as that of the surrounding water. just as the bubble reaches the surface, what is its volume?

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?